Question 3 & 4
Question 3: A person has 180 pens out of which 9 are blue, What is percentage of blue pens ?
FPSC AD IB 2017
Solution:
This is question asking percentage of some pens from a collection of pens!
To solve this we should understand Percentage !
visit this link as well for percent formula
Lets suppose 9 is ‘x’ percent of 180
i-e
Question 4: A student got 68 marks, which are 85% of total marks. How many total marks are there ?
FPSC AD IB 2017
Solution:
Lets suppose total marks = x
Now because the boy got 68 or 85 % marks from total marks ‘x’
it means
68 is 85 % of x
we cam write it as ;
So, total marks were 80